<abstract xmlns="http://www.w3.org/1999/xhtml"><p> Natural vegetation is complex and its reflectance is not easy to model. The aim of this study was to adjust the Radiative Transfer Model parameters for modelling the reflectance of heterogeneous meadows and evaluate its accuracy dependent on the vegetation characteristics. PROSAIL input parameters and reference spectra were collected during field measurements. Two different datasets were created: in the first, the input parameters were modelled using only field measurements; in the second, three input parameters were adjusted to minimize the differences between modelled and measured spectra. Reflectance was modelled using two datasets and then verified based on field reflectance using the RMSE. The average RMSE for the first dataset was equal to 0.1058, the second was 0.0362. The accuracy of the simulated spectra was analysed dependent on the value of the biophysical parameters. Better results were obtained for meadows with higher biomass value, greater LAI and lower water content.</p></abstract>

Natural vegetation is complex and its reflectance is not easy to model. The aim of this study was to adjust the Radiative Transfer Model parameters for modelling the reflectance of heterogeneous meadows and evaluate its accuracy dependent on the vegetation characteristics. PROSAIL input parameters and reference spectra were collected during field measurements. Two different datasets were created: in the first, the input parameters were modelled using only field measurements; in the second, three input parameters were adjusted to minimize the differences between modelled and measured spectra. Reflectance was modelled using two datasets and then verified based on field reflectance using the RMSE. The average RMSE for the first dataset was equal to 0.1058, the second was 0.0362. The accuracy of the simulated spectra was analysed dependent on the value of the biophysical parameters. Better results were obtained for meadows with higher biomass value, greater LAI and lower water content.

Radiative Transfer Model parametrization for simulating the reflectance of meadow vegetation

Department of Geoinformatics and Remote Sensing, Faculty of Geography and Regional Studies, University of Warsaw

Miscellanea Geographica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Natural vegetation is complex and its reflectance is not easy to model. The aim of this study was to adjust the Radiative Transfer Model parameters for...

Radiative Transfer Model parametrization for simulating the reflectance of meadow vegetation

Online veröffentlicht: 17. Juni 2014

Seitenbereich: 5 - 9

Eingereicht: 31. Juli 2013

Akzeptiert: 19. Dez. 2013

DOI: https://doi.org/10.2478/mgrsd-2014-0001

Schlüsselwörter
Meadows, spectral reflectance, Radiative Transfer Model, PROSAIL

© by Anna M. Jarocińska

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Radiative Transfer Model parametrization for simulating the reflectance of meadow vegetation

Online veröffentlicht: 17. Juni 2014

Seitenbereich: 5 - 9

Eingereicht: 31. Juli 2013

Akzeptiert: 19. Dez. 2013

DOI: https://doi.org/10.2478/mgrsd-2014-0001

SchlüsselwörterMeadows, spectral reflectance, Radiative Transfer Model, PROSAIL

© by Anna M. Jarocińska

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Schlüsselwörter
Meadows, spectral reflectance, Radiative Transfer Model, PROSAIL